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Acetolactate synthase inhibitor (ALS) herbicides applied to green sugarcane and changes in seed banks of harmful plants

Grant number: 06/01348-7
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): July 01, 2006
Effective date (End): June 30, 2007
Field of knowledge:Agronomical Sciences - Agronomy - Crop Science
Principal researcher:Patrícia Andrea Monquero
Grantee:Lucas Rios Do Amaral
Home Institution: Centro de Ciências Agrárias (CCA). Universidade Federal de São Carlos (UFSCAR). Araras , SP, Brazil

Abstract

The culture of the sugarcane absorbs great amount of work hand and inputs in cycle of production. Among the inputs, the herbicide act about 56% of the volume marketed at the country. The inhibiting herbicides of the acetolactato synthase are very used, in reason of low toxicity for animals, high selectivity for the cultures, ties efficiency in low doses and wide spectrum of weed control. However, with the current tendency of increase use of harvesting machines, sugarcane harvesting is increasingly being done mechanically and without pre harvest burning of the plantation, the current weed control presents significant changes, being large necessary study regarding the weed seed bank dynamics and of herbicides that adapt to this crop system. Therefore, in this harvesting of the sugarcane; the mobility and persistence of the herbicides trifloxysulfuron-sodium, halosulfuron, flazasulfuron, imazapic, and imazapyr trough the sugarcane trashy; the mobility of trifloxysulfuron-sodium, halosulfuron, flazasulfuron, imazapic and imazapyr herbicides in the different crop systems. (AU)

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